WO1995028045A1 - Wideband fft channelizer - Google Patents

Wideband fft channelizer Download PDF

Info

Publication number
WO1995028045A1
WO1995028045A1 PCT/US1995/002997 US9502997W WO9528045A1 WO 1995028045 A1 WO1995028045 A1 WO 1995028045A1 US 9502997 W US9502997 W US 9502997W WO 9528045 A1 WO9528045 A1 WO 9528045A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
output
coupled
signal
fourier transform
Prior art date
Application number
PCT/US1995/002997
Other languages
English (en)
French (fr)
Inventor
Ronald R. Carney
Terry L. Williams
Original Assignee
Airnet Communications Corp.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Airnet Communications Corp. filed Critical Airnet Communications Corp.
Priority to EP95913631A priority Critical patent/EP0774181B1/en
Priority to AT95913631T priority patent/ATE240616T1/de
Priority to CA002187343A priority patent/CA2187343C/en
Priority to DE69530774T priority patent/DE69530774T2/de
Priority to JP7526332A priority patent/JPH09511880A/ja
Priority to AU19943/95A priority patent/AU706263B2/en
Publication of WO1995028045A1 publication Critical patent/WO1995028045A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
    • H04B1/0007—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
    • H04B1/0014—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage using DSP [Digital Signal Processor] quadrature modulation and demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/04—Frequency-transposition arrangements
    • H04J1/05—Frequency-transposition arrangements using digital techniques
PCT/US1995/002997 1994-04-08 1995-03-13 Wideband fft channelizer WO1995028045A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP95913631A EP0774181B1 (en) 1994-04-08 1995-03-13 Wideband fft channelizer
AT95913631T ATE240616T1 (de) 1994-04-08 1995-03-13 Breitband fft kanalisierer
CA002187343A CA2187343C (en) 1994-04-08 1995-03-13 Wideband fft channelizer
DE69530774T DE69530774T2 (de) 1994-04-08 1995-03-13 Breitband fft kanalisierer
JP7526332A JPH09511880A (ja) 1994-04-08 1995-03-13 広帯域ｆｆｔチャンネル化装置
AU19943/95A AU706263B2 (en) 1994-04-08 1995-03-13 Wideband FFT channelizer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/224,754 US5537435A (en) 1994-04-08 1994-04-08 Transceiver apparatus employing wideband FFT channelizer with output sample timing adjustment and inverse FFT combiner for multichannel communication network
US08/224,754 1994-04-08

Publications (1)

Publication Number Publication Date
WO1995028045A1 true WO1995028045A1 (en) 1995-10-19

Family

ID=22842039

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/002997 WO1995028045A1 (en) 1994-04-08 1995-03-13 Wideband fft channelizer

Country Status (11)

Country Link
US (1) US5537435A (zh)
EP (1) EP0774181B1 (zh)
JP (1) JPH09511880A (zh)
KR (1) KR100366751B1 (zh)
CN (1) CN1069468C (zh)
AT (1) ATE240616T1 (zh)
AU (1) AU706263B2 (zh)
CA (1) CA2187343C (zh)
DE (1) DE69530774T2 (zh)
ES (1) ES2197198T3 (zh)
WO (1) WO1995028045A1 (zh)

Cited By (5)

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WO1999065172A1 (en) * 1998-06-10 1999-12-16 Telefonaktiebolaget Lm Ericsson (Publ) A method and apparatus for digital channelisation and de-channelisation
WO2000018021A3 (en) * 1998-09-18 2000-07-13 Ericsson Telefon Ab L M Flexibility enhancement to the modified fast convolution algorithm
US6324559B1 (en) 1998-10-16 2001-11-27 Telefonaktiebolaget Lm Ericsson (Publ) Odd-transform fast convolution
US6611855B1 (en) 1999-06-21 2003-08-26 Telefonaktiebolaget Lm Ericsson (Publ) Flexible and efficient channelizer architecture
US9352289B2 (en) 2010-12-28 2016-05-31 Conopco, Inc. Method for production of an emulsion

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999065172A1 (en) * 1998-06-10 1999-12-16 Telefonaktiebolaget Lm Ericsson (Publ) A method and apparatus for digital channelisation and de-channelisation
AU756733B2 (en) * 1998-06-10 2003-01-23 Telefonaktiebolaget Lm Ericsson (Publ) A method and apparatus for digital channelisation and de-channelisation
US7227902B2 (en) 1998-06-10 2007-06-05 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for digital channelisation and de-channelisation
WO2000018021A3 (en) * 1998-09-18 2000-07-13 Ericsson Telefon Ab L M Flexibility enhancement to the modified fast convolution algorithm
US6266687B1 (en) 1998-09-18 2001-07-24 Telefonaktiebolaget Lm Ericsson (Publ) Flexibility enhancement to the modified fast convolution algorithm
US6393451B2 (en) 1998-09-18 2002-05-21 Telefonaktiebolaget Lm Ericsson (Publ) Flexibility enhancement to the modified fast convolution algorithm
US6324559B1 (en) 1998-10-16 2001-11-27 Telefonaktiebolaget Lm Ericsson (Publ) Odd-transform fast convolution
US6611855B1 (en) 1999-06-21 2003-08-26 Telefonaktiebolaget Lm Ericsson (Publ) Flexible and efficient channelizer architecture
US9352289B2 (en) 2010-12-28 2016-05-31 Conopco, Inc. Method for production of an emulsion

Also Published As

Publication number Publication date
ATE240616T1 (de) 2003-05-15
DE69530774T2 (de) 2004-01-29
CN1152981A (zh) 1997-06-25
ES2197198T3 (es) 2004-01-01
CA2187343C (en) 2004-06-01
DE69530774D1 (de) 2003-06-18
KR100366751B1 (ko) 2003-04-10
EP0774181B1 (en) 2003-05-14
CN1069468C (zh) 2001-08-08
JPH09511880A (ja) 1997-11-25
EP0774181A1 (en) 1997-05-21
CA2187343A1 (en) 1995-10-19
AU706263B2 (en) 1999-06-10
US5537435A (en) 1996-07-16
AU1994395A (en) 1995-10-30

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